Bicycle frame with universal joint structure

Abstract

The utility model provides a bicycle frame with a universal joint structure, which relates to the technical field of frames, and comprises a frame body, a seat tube is arranged on one side of the frame body, a connecting device is arranged on one side of the seat tube, the connecting device comprises a sleeve, a plurality of push blocks and a plurality of pressing plates, wherein the sleeve pushes the multiple push blocks to move close to each other by moving up and down, then the multiple push blocks push the pressing plates to move close to each other to extrude and fix the saddle connecting rods of different models, and a lubricating device for conveniently adding oil is arranged on the side, close to the pedal shaft, of the frame body. According to the utility model, the connecting device is arranged to be matched with and fix various types of seats, so that the adaptability between the seat tube and the seat is increased, and the situation that the seat and the seat tube are difficult to mount or cannot be mounted due to the fact that the type of the seat is not matched with the size of the seat tube after the seat is damaged is reduced; and the maintenance efficiency and convenience of the vehicle seat by personnel are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of frame, especially a bicycle frame with universal joint structure. BACKGROUND

[0002] The bicycle frame is the main structure of the bicycle, is the basic structure of the bicycle, is also the skeleton and main body of the bicycle, supports the whole bicycle system, includes the front fork, head tube, seat tube and other parts, and all other parts are directly or indirectly fixed on the frame.

[0003] The existing bicycle frame uses the frame body as the supporting skeleton of the whole bicycle during use, then installs the components such as wheels, seats and handlebars on the frame body through the front and rear fork frames, seat tubes and head tubes of the frame body, so that the complete bicycle is formed.

[0004] However, since the size of the seat tube is single, the seat may be difficult or impossible to install after being damaged due to the incompatibility between the model of the seat and the size of the seat tube, thereby affecting the maintenance efficiency of the seat. INVENTION CONTENTS

[0005] The utility model solves the technical problems that the size of the seat tube is single, the seat may be difficult or impossible to install after being damaged due to the incompatibility between the model of the seat and the size of the seat tube, thereby affecting the maintenance efficiency of the seat.

[0006] The utility model adopts the technical scheme that a bicycle frame with universal joint structure comprises a frame body, the side of the frame body is provided with a seat tube, the side of the seat tube is provided with a connecting device, the connecting device comprises a sleeve, a plurality of push blocks and a plurality of pressing plates, the sleeve drives the plurality of push blocks to move close to each other by moving up and down, then the plurality of push blocks drive the pressing plates to move close to each other and extrude and fix the seat connecting rods of different models, and the side of the frame body close to the pedal shaft is provided with a lubricating device for conveniently adding oil.

[0007] The above components achieve the effects that the frame body is used as the supporting skeleton of the whole bicycle, then the components such as wheels, seats and handlebars are installed on the frame body through the front and rear fork frames, seat tubes and head tubes of the frame body, so that the complete bicycle is formed.

[0008] Preferably, the connecting device comprises a threaded pipe fixedly connected with the seat pipe, a plurality of circular holes are formed in the surface of the threaded pipe, the inner walls of the plurality of circular holes are all slidably connected with circular rods, one end of each of the plurality of circular rods is fixedly connected with a push block, the surface of the push block is trapezoidal, one end of each of the plurality of circular rods away from the push block is fixedly connected with a pressing plate, the plurality of pressing plates are all located inside the threaded pipe, the surface of the threaded pipe is threadedly connected with a threaded hole ring, one side of the threaded hole ring is fixedly connected with a sleeve, and the sleeve is sleeved on the surface of the threaded pipe.

[0009] The above-mentioned components achieve the effects that: by arranging the connecting device, first, the connecting rod of the seat is manually inserted into the threaded pipe, so that the connecting rod of the seat is located between the plurality of pressing plates; at this time, the threaded hole ring is manually rotated to move the threaded hole ring along the surface of the threaded pipe away from the frame body, so that the threaded hole ring drives the sleeve to move towards the push block, so that the sleeve extrudes and pushes the plurality of push blocks in the process of movement, so that the plurality of push blocks simultaneously push the plurality of pressing plates to move towards the connecting rod of the seat by means of the circular rods; when the plurality of pressing plates are all moved to the position of extruding the surface of the connecting rod of the seat, the plurality of pressing plates are clamped and fixed to the connecting rod of the seat, so that the plurality of pressing plates can be adapted to a plurality of different sizes of seats by position movement to extrude and fix the seats, thereby achieving the assembly and fixation between the seats of a plurality of models and the seat pipe, reducing the situation that the seat is difficult or unable to be installed between the seat pipe due to the inadaptation of the model of the seat and the size of the seat pipe after the seat is damaged, and improving the maintenance efficiency and convenience of the personnel on the seat.

[0010] Preferably, one side of each of the plurality of pressing plates is fixedly connected with a rubber pad, and the surface of each of the plurality of rubber pads is provided with a plurality of protrusions.

[0011] The above-mentioned components achieve the effects that: by arranging the rubber pad, the rubber pad can increase the adhesion of the pressing plate to the surface of the connecting rod of the seat, and increase the friction and resistance of the pressing plate to the surface of the connecting rod of the seat, thereby further improving the clamping stability of the pressing plate to the connecting rod of the seat.

[0012] Preferably, the inner walls of the plurality of circular holes are all provided with limiting grooves, one side of each of the plurality of circular rods is fixedly connected with a limiting block, and the surface of each of the plurality of limiting blocks is slidably connected with the inner wall of each of the plurality of limiting grooves.

[0013] The above-mentioned components achieve the effects that: by arranging the limiting grooves and the limiting blocks, the limiting blocks can be located inside the limiting grooves to assist in limiting the circular rods and the pressing plates, thereby reducing the shaking of the pressing plates in use.

[0014] Preferably, the surface of the sleeve is provided with a plurality of reinforcing ribs, and the reinforcing ribs are made of steel.

[0015] The effect achieved by the above component is that the reinforcing rib can increase the strength of the sleeve, and reduce the possibility of breakage or deformation of the sleeve when the sleeve is pressed against the plurality of push blocks.

[0016] Preferably, the surface of the threaded hole ring is fixedly connected with a plurality of anti-skid strips, and the plurality of anti-skid strips are arranged at equal distances.

[0017] The effect achieved by the above component is that the anti-skid strips can assist in intercepting the hands, and reduce the possibility of hand slipping when the threaded hole ring is manually rotated.

[0018] Preferably, the lubricating device comprises an oil storage box, the oil storage box is fixedly connected with the side of the frame body close to the pedal shaft, one side of the oil storage box is fixedly connected with a feeding pipe, the surface of the feeding pipe is sleeved with a sealing cover, one side of the oil storage box is fixedly connected with a hose, and one side of the oil storage box is fixedly connected with a clamping plate for clamping and fixing the hose.

[0019] The effect achieved by the above component is that the lubricating device is provided, first, the lubricating oil is poured into the oil storage box through the feeding pipe, when it is necessary to lubricate the connection between the frame body and the pedal shaft, the hose is manually taken off from the clamping plate and placed at the gap position between the frame body and the pedal shaft, so that the lubricating oil in the oil storage box is discharged through the hose and falls into the gap between the frame body and the pedal shaft, thereby achieving rapid lubrication of the connection between the frame body and the pedal shaft, and reducing the situation that when the connection between the pedal shaft and the frame body needs to be lubricated, the personnel cannot add lubricating oil to the connection in the first time, thereby increasing the friction between the pedal shaft and the frame body, affecting the service life, and improving the lubrication convenience of the personnel for the connection between the pedal shaft and the frame body.

[0020] Preferably, a sight hole is formed in one side of the oil storage box, and a transparent plate is fixedly connected to the inner wall of the sight hole.

[0021] The effect achieved by the above component is that the sight hole is provided, so that the personnel can observe the oil amount in the oil storage box through the sight hole and the transparent plate, and the convenience of the personnel in measuring the lubricating oil storage is improved.

[0022] The beneficial effects of the utility model are as follows:

[0023] The connecting device can be adapted to various models of saddles and fixed, the adaptability between the seat tube and the saddle is increased, the situation that the saddle cannot be installed or is difficult to install due to the inadaptability between the model of the saddle and the size of the seat tube after the saddle is damaged is reduced, and the maintenance efficiency and convenience of the personnel for the saddle are improved. BRIEF DESCRIPTION OF DRAWINGS

[0024] The utility model will be further described in connection with the drawings and examples.

[0025] Figure 1 It is the three-dimensional structure schematic view of the utility model frame body;

[0026] Figure 2 It is the three-dimensional structure schematic view of the utility model;

[0027] Figure 3 It is the three-dimensional structure schematic view of the utility model threaded pipe;

[0028] Figure 4 It is the three-dimensional structure schematic view of the utility model threaded hole ring;

[0029] Figure 5 It is the three-dimensional structure schematic view of the utility model oil storage box.

[0030] Legend: 1, frame; 2, seat pipe; 3, connecting device; 31, threaded pipe; 32, circular hole; 33, round rod; 34, push block; 35, pressing plate; 36, rubber pad; 37, limiting groove; 38, limiting block; 39, threaded hole ring; 310, sleeve; 311, reinforcing rib; 312, anti-skid strip; 4, lubricating device; 41, oil storage box; 42, feed pipe; 43, hose; 44, clamping plate; 45, sight hole. DETAILED DESCRIPTION

[0031] The utility model will be further explained in detail in combination with the drawings. These drawings are all simplified schematic views, and only illustrate the basic structure of the utility model in a schematic manner, so it only shows the structure related to the utility model.

[0032] In the description of the utility model, it should be explained that, unless otherwise explicitly specified and limited, the terms "connected", "connected" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0033] Figures 1-5The bicycle frame with a universal joint structure comprises a frame body 1, a seat tube 2 arranged on one side of the frame body 1, and a connecting device 3 arranged on one side of the seat tube 2, wherein the connecting device 3 comprises a sleeve 310, a plurality of push blocks 34 and a plurality of pressing plates 35, wherein the sleeve 310 pushes the plurality of push blocks 34 to move towards each other by moving up and down, and then the plurality of push blocks 34 push the plurality of pressing plates 35 to move towards each other to extrude and fix the seat connecting rod of different models, the frame body 1 is provided with a lubricating device 4 for conveniently adding oil on one side close to the pedal shaft, the frame body 1 is used as the support framework of the whole bicycle, and then the wheels, the seat, the handle and other components are installed on the frame body 1 through the front and rear fork frames, the seat tube 2 and the head tube of the frame body 1, so that the complete bicycle is formed.

[0034] Figure 3 And Figure 4 The connecting device 3 comprises a threaded tube 31 fixedly connected with the seat tube 2, a plurality of circular holes 32 formed in the surface of the threaded tube 31, a plurality of circular rods 33 slidably connected with the inner walls of the plurality of circular holes 32, a plurality of push blocks 34 fixedly connected with one ends of the plurality of circular rods 33, wherein the surface of the push block 34 is trapezoidal, a plurality of pressing plates 35 fixedly connected with the ends of the plurality of circular rods 33 away from the push blocks 34, the plurality of pressing plates 35 are located inside the threaded tube 31, a threaded hole ring 39 threadedly connected with the surface of the threaded tube 31, and a sleeve 310 fixedly connected with one side of the threaded hole ring 39 and sleeved on the surface of the threaded tube 31. By arranging the connecting device 3, the connecting rod of the seat is first manually inserted into the inside of the threaded tube 31, so that the seat connecting rod is located between the plurality of pressing plates 35, at this time, the threaded hole ring 39 is manually rotated to move along the surface of the threaded tube 31 away from the frame body 1, so that the threaded hole ring 39 drives the sleeve 310 to move towards the push blocks 34, so that the sleeve 310 extrudes and pushes the plurality of push blocks 34 during the movement, so that the plurality of push blocks 34 push the plurality of pressing plates 35 towards the seat connecting rod through the circular rods 33, when the plurality of pressing plates 35 are all moved to the position extruding the surface of the seat connecting rod, the plurality of pressing plates 35 clamp and fix the seat connecting rod, so that the plurality of pressing plates 35 can be adapted to a plurality of different sizes of seats to extrude and fix the seats, thereby achieving the assembly and fixation between the plurality of models of seats and the seat tube 2, reducing the situation that the seat and the seat tube 2 are difficult or impossible to install due to the inadaptation of the model of the seat and the size of the seat tube 2 after the seat is damaged, and improving the maintenance efficiency and convenience of personnel on the seat.

[0035] Figure 3 And Figure 4The proximal side of the plurality of pressing plates 35 is fixedly connected with rubber pads 36, the surface of the plurality of rubber pads 36 is provided with a plurality of protrusions, by setting the rubber pad 36, the rubber pad 36 can increase the adhesion of the pressing plate 35 and the surface of the seat connecting rod, and increase the friction and resistance of the pressing plate 35 and the surface of the seat connecting rod, further improve the clamping stability of the pressing plate 35 to the seat connecting rod, the inner wall of the plurality of circular holes 32 is provided with a limiting groove 37, one side of the plurality of circular rods 33 is fixedly connected with a limiting block 38, the surface of the plurality of limiting blocks 38 is respectively and slidably connected with the inner wall of the plurality of limiting grooves 37, by setting the limiting groove 37 and the limiting block 38, the limiting block 38 can be located in the inside of the limiting groove 37 to assist in limiting the circular rod 33 and the pressing plate 35, and reduce the shaking of the pressing plate 35 during use.

[0036] Figure 3 and Figure 4 The surface of the sleeve 310 is provided with a plurality of reinforcing ribs 311, wherein the reinforcing ribs 311 are made of steel material, by setting the reinforcing ribs 311, the reinforcing ribs 311 can increase the strength of the sleeve 310, reduce the rupture or deformation of the sleeve 310 when extruding the plurality of push blocks 34, the surface of the threaded hole ring 39 is fixedly connected with a plurality of anti-skid strips 312, the plurality of anti-skid strips 312 are arranged at equal distances, by setting the anti-skid strips 312, the anti-skid strips 312 can assist in intercepting the hands, and reduce the hand slip when manually rotating the threaded hole ring 39.

[0037] Figure 5 The lubricating device 4 comprises a oil storage box 41, the oil storage box 41 is fixedly connected with the side of the frame body 1 close to the pedal shaft, one side of the oil storage box 41 is fixedly connected with a feeding pipe 42, the surface of the feeding pipe 42 is provided with a sealing cover, one side of the oil storage box 41 is fixedly connected with a hose 43, one side of the oil storage box 41 is fixedly connected with a clamping plate 44 for clamping and fixing the hose 43, by setting the lubricating device 4, first, the lubricating oil is poured into the inside of the oil storage box 41 through the feeding pipe 42, when it is needed to lubricate the connection between the frame body 1 and the pedal shaft, the hose 43 is manually taken off from the clamping plate 44 and placed at the gap position between the frame body 1 and the pedal shaft, so that the lubricating oil in the oil storage box 41 is discharged through the hose 43 and falls into the gap between the frame body 1 and the pedal shaft, thereby achieving rapid lubrication of the connection between the frame body 1 and the pedal shaft, reducing the situation that when the connection between the pedal shaft and the frame body 1 needs to be lubricated, the personnel cannot add lubricating oil to the connection in the first time, causing the friction between the pedal shaft and the frame body 1 to increase, affecting the service life, and improving the lubrication convenience of the personnel to the connection between the pedal shaft and the frame body 1.

[0038] Figure 5The oil storage box 41 is provided with a sight hole 45 on one side, and a transparent plate is fixedly connected to the inner wall of the sight hole 45. Through the setting of the sight hole 45, personnel can observe the oil quantity in the oil storage box 41 through the sight hole 45 and the transparent plate, and the convenience of personnel in measuring and calculating the lubricating oil storage is improved.

[0039] Working principle: first, the frame body 1 is used as the support framework of the whole bicycle, and then the components such as wheels, saddles, handlebars, etc. are installed on the frame body 1 through the front and rear fork frames, seat tubes 2, head tubes and other components of the frame body 1, so as to form a complete bicycle.

[0040] First, manually insert the connecting rod of the saddle into the inside of the threaded pipe 31, so that the saddle connecting rod is located between the plurality of pressing plates 35, at this time, manually rotate the screw hole ring 39, so that the screw hole ring 39 moves along the surface of the threaded pipe 31 in the direction away from the frame body 1, so that the sleeve 310 is driven by the screw hole ring 39 to move towards the push block 34, so that the sleeve 310 extrudes and pushes the plurality of push blocks 34 during the movement, so that the plurality of push blocks 34 simultaneously push the plurality of pressing plates 35 to move towards the saddle connecting rod by the circular rod 33, when the plurality of pressing plates 35 are all moved to the position extruding the surface of the saddle connecting rod, the plurality of pressing plates 35 are clamped and fixed to the saddle connecting rod, so that the plurality of pressing plates 35 can adapt to extrude and fix various sizes of saddles by position movement, thereby achieving the assembly and fixation between the various types of saddles and the seat tube 2.

[0041] First, the lubricating oil is poured into the inside of the oil storage box 41 through the feed pipe 42, when the connection between the frame body 1 and the pedal shaft needs to be lubricated, manually remove the hose 43 from the clamping plate 44 and place the outlet position in the gap between the frame body 1 and the pedal shaft, so that the lubricating oil in the oil storage box 41 is discharged through the hose 43 and falls into the gap between the frame body 1 and the pedal shaft, thereby achieving rapid lubrication of the connection between the frame body 1 and the pedal shaft.

[0042] Based on the above ideal embodiment of the present application, through the above description, relevant personnel can make various changes and modifications without deviating from the technical idea of the present application. The technical scope of the present application is not limited to the contents in the specification, and the technical scope must be determined according to the scope of claims.

Claims

1. Bicycle frame with universal joint structure, comprising a frame body (1), characterized in that: One side of the frame body (1) is provided with a seat pipe (2), one side of the seat pipe (2) is provided with a connecting device (3), wherein the connecting device (3) comprises a sleeve (310), a plurality of push blocks (34) and a plurality of pressing plates (35), wherein the sleeve (310) pushes the plurality of push blocks (34) to move closer to each other by moving up and down, and then the plurality of push blocks (34) push the pressing plates (35) to move closer to each other to extrude and fix different models of seat connecting rods, and one side of the frame body (1) close to the pedal shaft is provided with a lubricating device (4) for conveniently adding oil.

2. A bicycle frame with a universal joint structure according to claim 1, characterized in that: The connecting device (3) comprises a threaded pipe (31), the threaded pipe (31) is fixedly connected with the seat pipe (2), a plurality of circular holes (32) are formed in the surface of the threaded pipe (31), the inner walls of the plurality of circular holes (32) are slidably connected with circular rods (33), one end of each of the plurality of circular rods (33) is fixedly connected with a push block (34), wherein the surface of the push block (34) is trapezoidal, the end of each of the plurality of circular rods (33) away from the push block (34) is fixedly connected with a pressing plate (35), and the plurality of pressing plates (35) are located inside the threaded pipe (31), the surface of the threaded pipe (31) is threadedly connected with a threaded hole ring (39), one side of the threaded hole ring (39) is fixedly connected with the sleeve (310), and the sleeve (310) is sleeved on the surface of the threaded pipe (31).

3. A bicycle frame with a universal joint structure according to claim 2, characterized in that: The proximal side of each of the plurality of pressing plates (35) is fixedly connected with a rubber pad (36), and the surface of each of the plurality of rubber pads (36) is provided with a plurality of protrusions.

4. A bicycle frame with a universal joint structure according to claim 2, characterized in that: The inner walls of the plurality of circular holes (32) are provided with limiting grooves (37), one side of each of the plurality of circular rods (33) is fixedly connected with a limiting block (38), and the surface of each of the plurality of limiting blocks (38) is slidably connected with the inner wall of each of the plurality of limiting grooves (37).

5. A bicycle frame with a universal joint structure according to claim 2, characterized in that: The surface of the sleeve (310) is provided with a plurality of reinforcing ribs (311), wherein the reinforcing ribs (311) are made of steel.

6. A bicycle frame with a universal joint structure according to claim 2, characterized in that: The surface of the threaded hole ring (39) is fixedly connected with a plurality of anti-skid strips (312), and the plurality of anti-skid strips (312) are arranged at equal distances.

7. A bicycle frame with universal joint structure according to claim 1, characterized in that: The lubricating device (4) comprises an oil storage box (41), the oil storage box (41) is fixedly connected with one side of the frame body (1) close to the pedal shaft, one side of the oil storage box (41) is fixedly connected with a feeding pipe (42), wherein the surface of the feeding pipe (42) is sleeved with a sealing cover, one side of the oil storage box (41) is fixedly connected with a hose (43), and one side of the oil storage box (41) is fixedly connected with a clamping plate (44) for clamping and fixing the hose (43).

8. A bicycle frame with a universal joint structure according to claim 7, characterized in that: One side of the oil storage box (41) is provided with a sight hole (45), and the inner wall of the sight hole (45) is fixedly connected with a transparent plate.

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